EP 3270256 A1 20180117 - NOISE REDUCTION CIRCUIT AND ASSOCIATED DELTA-SIGMA MODULATOR
Title (en)
NOISE REDUCTION CIRCUIT AND ASSOCIATED DELTA-SIGMA MODULATOR
Title (de)
SCHALTUNG ZUR RAUSCHVERMINDERUNG UND ZUGEHÖRIGER DELTA-SIGMA-MODULATOR
Title (fr)
CIRCUIT DE RÉDUCTION DE BRUIT ET MODULATEUR DELTA-SIGMA ASSOCIÉ
Publication
Application
Priority
- US 201662360986 P 20160712
- US 201715629731 A 20170621
Abstract (en)
A circuit (100) includes a transistor (M0), a signal generating circuit (120) and a noise sensing circuit (110). The signal generating circuit (120) is arranged to provide an input signal. The noise sensing circuit (110) is coupled to the transistor (M0) and the signal generating circuit (120), and the noise sensing circuit (110) is arranged for receiving the input signal provided by the signal generating circuit (120) to generate an output signal to the transistor (M0), wherein a signal component of the output signal generated by the noise sensing circuit (110) cancels out a signal component of the input signal provided by the signal generating circuit (120), and the output signal and the input signal have opposite polarities.
IPC 8 full level
G05F 3/02 (2006.01); G05F 1/46 (2006.01); G05F 3/26 (2006.01); H03F 1/30 (2006.01); H03M 3/00 (2006.01)
CPC (source: EP US)
G05F 3/262 (2013.01 - EP US); H03F 1/26 (2013.01 - EP US); H03F 3/193 (2013.01 - EP US); H03M 3/322 (2013.01 - US); H03M 3/368 (2013.01 - EP US); H03M 3/50 (2013.01 - US); H03F 2200/498 (2013.01 - EP US); H03M 1/00 (2013.01 - US); H03M 1/12 (2013.01 - US); H03M 3/30 (2013.01 - US); H03M 3/422 (2013.01 - EP US)
Citation (search report)
- [X] US 4866399 A 19890912 - GOSE MARK W [US]
- [X] US 2014247035 A1 20140904 - GUPTA NITIN [IN], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 9831892 B1 20171128; CN 107612551 A 20180119; CN 107612551 B 20210122; EP 3270256 A1 20180117; EP 3270256 B1 20210804; TW 201803275 A 20180116; TW I636671 B 20180921
DOCDB simple family (application)
US 201715629731 A 20170621; CN 201710545553 A 20170706; EP 17178615 A 20170629; TW 106123176 A 20170711